Encyclopedia Entry: 74AVCH4T245PWRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal Level Shifter and Translator
• Characteristics: High-speed, bidirectional voltage level translation, low power consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Translates signals between different voltage levels in electronic circuits
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Manufacturer: Texas Instruments
• Logic Family: AVC
• Number of Channels: 4
• Input Voltage Range: 1.2V to 3.6V
• Output Voltage Range: 1.65V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 1.2V to 3.6V
• Propagation Delay Time: 2.7 ns (typical)
• Output Current: ±8 mA

Detailed Pin Configuration

The 74AVCH4T245PWRG4 IC has a total of 20 pins arranged as follows:

┌───┬───┐ OE1 │1 ┆ 20│ VCCB A1 │2 ┆ 19│ B1 A2 │3 ┆ 18│ B2 A3 │4 ┆ 17│ B3 GND │5 ┆ 16│ B4 A4 │6 ┆ 15│ OE2 VCCA│7 ┆ 14│ DIR B1 │8 ┆ 13│ A1 B2 │9 ┆ 12│ A2 B3 │10 ┆ 11│ A3 └───┴───┘

Functional Features

• Bidirectional voltage level translation between two different voltage domains.
• Supports translation from a lower voltage to a higher voltage and vice versa.
• High-speed operation with minimal propagation delay time.
• Low power consumption, making it suitable for battery-powered devices.
• Enables interfacing between devices operating at different voltage levels.

Advantages and Disadvantages

Advantages: - Provides seamless signal translation between different voltage levels. - High-speed operation allows for efficient data transfer. - Low power consumption helps prolong battery life in portable devices. - Compact TSSOP package offers space-saving integration.

Disadvantages: - Limited number of channels (4) may not be sufficient for complex systems requiring more connections. - Not suitable for voltage translation beyond the specified input and output voltage ranges.

Working Principles

The 74AVCH4T245PWRG4 is designed using advanced semiconductor technology to facilitate voltage level translation. It utilizes a combination of MOSFETs and control circuitry to enable bidirectional signal translation between two voltage domains. The IC operates by detecting the input voltage level and translating it to the corresponding output voltage level, ensuring compatibility between different parts of an electronic system.

Detailed Application Field Plans

The 74AVCH4T245PWRG4 finds applications in various electronic systems where voltage level translation is required. Some common application fields include: 1. Microcontroller Interfacing: Facilitating communication between microcontrollers operating at different voltage levels. 2. Sensor Networks: Enabling connectivity between sensors and microcontrollers with varying voltage requirements. 3. Data Communication Systems: Supporting voltage translation in serial communication interfaces like UART, SPI, and I2C. 4. Battery-Powered Devices: Allowing efficient power management by translating signals between battery voltage and system voltage domains.

Detailed Alternative Models

1. SN74AVCH4T245PWRG4 - Similar functionality, manufactured by Texas Instruments.
2. 74LVC4T245PW - Voltage level translator with 4 channels, manufactured by NXP Semiconductors.
3. MC74VHC4T245DTR2G - Bidirectional voltage level shifter with 4 channels, manufactured by ON Semiconductor.

Note: The above alternative models are provided for reference and may have slight variations in specifications and pin configuration.

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